<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../../vue.js"></script>
</head>

<body>
  <div id="app">
    <ul>
      <li v-for="c in cities"> {{c}}</li>
    </ul>
  </div>
  <script>
    //响应式
    var cities = ['beijing', 'tianjing', 'shanghai']
    var vm = new Vue({
      el: "#app",
      data: {
        cities
      }
    })

  </script>

</body>

</html>